Long-wave spin excitations of crystalline s − d models
Long-wave spin excitations in the perfect s-d model are studied. The Hamiltonian of the model includes, apart from usually treated spin-electron processes, the Heisenberg exchange interaction of atomic spins and the Coulomb interaction of conductive electrons. Hartree-Fock and Tyablikov approxima...
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| Date: | 1998 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
1998
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| Series: | Condensed Matter Physics |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/118825 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Long-wave spin excitations of crystalline s − d models / Yu. Rudavsky, G. Ponedilok, L. Dorosh // Condensed Matter Physics. — 1998. — Т. 1, № 1(13). — С. 145-160. — Бібліогр.: 21 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | Long-wave spin excitations in the perfect s-d model are studied. The Hamiltonian
of the model includes, apart from usually treated spin-electron processes,
the Heisenberg exchange interaction of atomic spins and the Coulomb
interaction of conductive electrons. Hartree-Fock and Tyablikov approximations
are used for closing the hierarchy of equations of motion for
the double-time Green functions. The equation for the magnon excitations
spectrum in this approximation is obtained. |
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